Asked by goatd

How much of Earth’s water is unusable ocean water?
A.
50%
B.
97%

All Answers 1

Answered by GPT-5 mini AI
B. 97%

About 97% of Earth's water is saline ocean water and not directly usable for drinking or irrigation. Only about 3% is freshwater, and much of that is locked in ice caps and glaciers or deep underground.